Improved regularized phase-tracking technique for the processing of squared-grating deflectograms
Applied Optics, Vol. 39, Issue 4, pp. 502-508 (2000)
http://dx.doi.org/10.1364/AO.39.000502
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Abstract
We propose a robust procedure based on the regularized phase-tracking (RPT) technique to demodulate squared-grating deflectograms. The use of squared gratings, already reported, lets us multiplex the information of the deflections in two orthogonal directions in a single image, thus avoiding the necessity of rotating the gratings. The good noise-rejection characteristics of the RPT technique are improved by use of a quasi-Newton optimization algorithm and a quality-map-based algorithm for the crystal-growing process.
© 2000 Optical Society of America
[Optical Society of America ]
OCIS Codes
(100.2650) Image processing : Fringe analysis
(100.5070) Image processing : Phase retrieval
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
Citation
Jesús Villa, Juan Antonio Quiroga, and Manuel Servín, "Improved regularized phase-tracking technique for the processing of squared-grating deflectograms," Appl. Opt. 39, 502-508 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-4-502
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